
\usepackage{threeparttable}

\begin{table}
\caption{Treatment effects on support for non-citizen local voting rights among Democrats in Pooled sample}
\begin{center}
\begin{threeparttable}
\begin{tabular}{l c c c c c c c c}
\hline
 & \multicolumn{1}{c}{vote US} & \multicolumn{1}{c}{vote own} & \multicolumn{1}{c}{gov dec} & \multicolumn{1}{c}{more info} & \multicolumn{1}{c}{vote US} & \multicolumn{1}{c}{vote own} & \multicolumn{1}{c}{gov dec} & \multicolumn{1}{c}{more info} \\
\cline{2-2} \cline{3-3} \cline{4-4} \cline{5-5} \cline{6-6} \cline{7-7} \cline{8-8} \cline{9-9}
 & (1) & (2) & (3) & (4) & (5) & (6) & (7) & (8) \\
\hline
control            & $3.700^{*}$         & $3.754^{*}$         & $3.735^{*}$         & $0.376^{*}$        & $1.645^{*}$         & $1.648^{*}$         & $1.711^{*}$         & $0.124^{*}$         \\
                   & $ [ 3.618;  3.782]$ & $ [ 3.673;  3.835]$ & $ [ 3.652;  3.818]$ & $ [ 0.346; 0.406]$ & $ [ 1.376;  1.914]$ & $ [ 1.380;  1.915]$ & $ [ 1.437;  1.985]$ & $ [ 0.028;  0.221]$ \\
co-partisan        & $0.050$             & $0.011$             & $0.008$             & $-0.024$           & $0.100$             & $0.063$             & $0.056$             & $-0.023$            \\
                   & $ [-0.064;  0.164]$ & $ [-0.102;  0.125]$ & $ [-0.109;  0.124]$ & $ [-0.066; 0.018]$ & $ [-0.005;  0.204]$ & $ [-0.041;  0.166]$ & $ [-0.051;  0.164]$ & $ [-0.065;  0.018]$ \\
counter-partisan   & $-0.669^{*}$        & $-0.691^{*}$        & $-0.679^{*}$        & $-0.028$           & $-0.664^{*}$        & $-0.686^{*}$        & $-0.676^{*}$        & $-0.032$            \\
                   & $ [-0.790; -0.548]$ & $ [-0.811; -0.571]$ & $ [-0.802; -0.556]$ & $ [-0.071; 0.014]$ & $ [-0.777; -0.551]$ & $ [-0.798; -0.574]$ & $ [-0.790; -0.561]$ & $ [-0.074;  0.010]$ \\
college            &                     &                     &                     &                    & $0.035$             & $0.085$             & $0.038$             & $-0.034$            \\
                   &                     &                     &                     &                    & $ [-0.060;  0.131]$ & $ [-0.011;  0.181]$ & $ [-0.060;  0.136]$ & $ [-0.071;  0.003]$ \\
male               &                     &                     &                     &                    & $-0.022$            & $-0.013$            & $-0.036$            & $-0.023$            \\
                   &                     &                     &                     &                    & $ [-0.112;  0.068]$ & $ [-0.103;  0.077]$ & $ [-0.128;  0.057]$ & $ [-0.058;  0.011]$ \\
white              &                     &                     &                     &                    & $-0.098$            & $-0.090$            & $-0.095$            & $-0.088^{*}$        \\
                   &                     &                     &                     &                    & $ [-0.204;  0.007]$ & $ [-0.195;  0.014]$ & $ [-0.203;  0.012]$ & $ [-0.128; -0.048]$ \\
latino             &                     &                     &                     &                    & $0.088$             & $0.101$             & $0.126$             & $0.031$             \\
                   &                     &                     &                     &                    & $ [-0.053;  0.229]$ & $ [-0.041;  0.244]$ & $ [-0.016;  0.268]$ & $ [-0.022;  0.085]$ \\
strong partisan    &                     &                     &                     &                    & $0.209^{*}$         & $0.201^{*}$         & $0.152^{*}$         & $-0.027$            \\
                   &                     &                     &                     &                    & $ [ 0.105;  0.313]$ & $ [ 0.097;  0.304]$ & $ [ 0.047;  0.257]$ & $ [-0.066;  0.012]$ \\
employed           &                     &                     &                     &                    & $0.246^{*}$         & $0.224^{*}$         & $0.237^{*}$         & $0.057^{*}$         \\
                   &                     &                     &                     &                    & $ [ 0.155;  0.337]$ & $ [ 0.133;  0.314]$ & $ [ 0.143;  0.331]$ & $ [ 0.023;  0.091]$ \\
married/partner    &                     &                     &                     &                    & $-0.023$            & $-0.023$            & $-0.039$            & $-0.012$            \\
                   &                     &                     &                     &                    & $ [-0.115;  0.070]$ & $ [-0.115;  0.070]$ & $ [-0.135;  0.056]$ & $ [-0.047;  0.022]$ \\
attitudes migrants &                     &                     &                     &                    & $0.435^{*}$         & $0.442^{*}$         & $0.434^{*}$         & $0.008$             \\
                   &                     &                     &                     &                    & $ [ 0.389;  0.480]$ & $ [ 0.397;  0.488]$ & $ [ 0.387;  0.481]$ & $ [-0.008;  0.024]$ \\
native born        &                     &                     &                     &                    & $0.067$             & $0.071$             & $0.052$             & $0.042$             \\
                   &                     &                     &                     &                    & $ [-0.066;  0.200]$ & $ [-0.063;  0.204]$ & $ [-0.082;  0.187]$ & $ [-0.006;  0.091]$ \\
interest politics  &                     &                     &                     &                    & $0.043$             & $0.042$             & $0.052^{*}$         & $0.069^{*}$         \\
                   &                     &                     &                     &                    & $ [-0.005;  0.091]$ & $ [-0.006;  0.089]$ & $ [ 0.003;  0.101]$ & $ [ 0.053;  0.086]$ \\
\hline
cov                & no                  & no                  & no                  & no                 & yes                 & yes                 & yes                 & yes                 \\
Adj. R$^2$         & $0.053$             & $0.054$             & $0.049$             & $0.000$            & $0.189$             & $0.195$             & $0.177$             & $0.033$             \\
Num. obs.          & $3105$              & $3104$              & $3105$              & $2994$             & $3105$              & $3104$              & $3105$              & $2994$              \\
\hline
\end{tabular}
\begin{tablenotes}[flushleft]
\scriptsize{\item Presents estimates of average treatment effects and heteroskedasticity-consistent 95% CIs without and with covariate adjustment for the Pooled sample (pooling together Study 1 and Study 2). The sample includes Democratic registered voters who answered covariate and outcome questions. 
 $^*$ Null hypothesis value outside the confidence interval.}
\end{tablenotes}
\end{threeparttable}
\label{table:ols_pooled_dem}
\end{center}
\end{table}
